Regulating mechanism for incubators.



L. L. WHITE. REGULATING MEGHANISM FOR INOUBATOBS.

APPLICATION IILBD APR. 19, 1910,

Patented Apr. 11

4 SHBETSSHEET I!v awuewkoz 61 time/1 wwmm L. L. WHITE. REGULATING MECHANISM FOR INOUBATORS.

- APPLICATION FILED APRJQ, 1910. 989,462. Patented Apr. 11, 1911.

l SHEETS-SHEET 2.

L. L. WHITE. REGULA'IING MECHANISM FOR INGUBATORS.

' APPLICATION FILED APR.19. 1910. QQAMEQ Patented Apr. 11, 1911.

'9: SHEBTSSHEET 3.

K mm

L. L. WHITE.

REGULATING MECHANISM FOR INGUBATORS.

APBLIOATION FILED APR. 19, 1910. I

Patented Apr. 11, 1913..

4 SHEETS-SHEET 4.

arrow LOUIS L. WHITE, EUGENE, UREGON.

"Specification of Lettersiatent.

,BEGULATIIQ'G MECHANIdM FDR INCUBATORS Patent. Apr. 11', mil.

Application filed. s in s, 1910. csgriai misecsea.

To all whom it may concern:

Be it known that 1, Louis L. WHITE, a citizen of the United States of America, residing at Eugene, in the county of Lane and State of Oregon, have invented certain new and useful Improvements in Regulating Mechanism for Incubators, of which the following is specification, reference being bad therein-to the accompanying drawing.

This invention relates to incubators, and

I has for its object to provide an apparatus 'spec'ifipation. l

Referring to the accompanying drawby means of which the heat of the incubator may be automatically regulated.

The invention further has for its object to provide an apparatus used in connection with an incubator by means of which a damper closing the h'eat'chamber of the ininay be automatically opened and 'the variation of the heat in the incubator. I

Thesjandother objects of this invention will appear in the course of the following .iiig,-F'igure 1 shows on a large scale a pox tion of an incubator, with parts broken away, and in. transverse section of the incubator body with a portion of the mechanism for automatically opening and closing the damper oi the incubator. Fig. 2 is an enlarged side view of a port-ion of the electrical mechanism for automatically operating the damper of the incubator. Fig. 3 is an enlarged detail view of anumber ofcontacts and rotary contact disks detached from their supports and partly broken away. Fig. 4;

is tildiagrammatic view of the electrical ap-.

paratus and circuits and thermostat by means of which the damper in the incubator is automatically opened and closed; Fig. 5 is an enlarged detail view of a thermostat employed in connection with this invention. Fig. dis a detail view in perspective with parts broken away of a ortion of a device for regulating the positlon of the thermostatic lever. Fig. 7 is an enlarged detail view of an electro-inagnet employed in connection with this invention, and a rotary disk controlled by said electromagnet. Fig.

8 is an enlarged detail view in longitudinalsection of a portion ofan incubator showing its damper open'and the lever mechanism for operating said. damper.

In carrying out this invention, an in cubator of the usual form is employed, provided with a heating chamber 1 and a, small jacent to the heatin chamber 1, said chanh ber Qhaving a window 3 in its side for the purpose of inspection of the-contents oi? said chamber. l for practical purposes, is of a small size, is located in the chamber 2. The incubator is provided with a hinged coveror damper l located in its top. l

The electrical apparatus for operating the damper or door d is constructed and arranged as follows: A pair of electric motors 5 and 6 are employed mounted in position adjacent to eachother, as shown in Fig. l, the driving shaft 7 of each motor being provided at one end with a small gear wheel 8 which meshes with av large toothed. wheel 9 mounted on a shaft 10 having its bearings in uprights l1 supported'on the floor of the chamber 2. Mounted in insulated supports 12, which are in turn mounted by means of rods and bolts 12 and connecting one bf the uprights ll-with an upright 11, are a number of flexible contact strips 13 and 13 and 16 and 16. The contactstrips lil'and 13 The electrical mechanism, which are adapted to contact with rotary contact disks 14 and -15 mounted on the shaft 10, and the contact strips lfi and 16 are adapo ed to contact with rotary contact disks 17 and 18 mounted on the shaft 10, there being but one Contact strip 16 and 16 for each of the rotary contact disks 17 and 18, while there are two contact strips 13 and 18 for each of the rotary contact disks 1% and 15. The rotary contact disks M and 15 are each formed with a fiat face or side 1i, and the rotary contact disks 17 and 18 are each formed with a projection 17', the purposes and objects of which construction will be hereinafter set forth and explained.

A suitable thermostat is suspended in the heating chamber 1 above the eggs placed upon the floor thereof, and is preferably constructed as follows: 'lhe thermostat is mounted on a support formed of a block 15 which is suspended from the upper side oi the heating chamber 1, as shown in 1, and preferably consists of ametal coil composed of strips of brass and steel soldered together, one end of said coil 20 being secured in the end of shaft 21 projecting through a plate 22 secured to the block 19, and on the other end of said coil 20 is mounted the thermostatic lever. arm 93 pro vided with a twisted end 24 which projects between the needle contact points 25 and 26,

v tro-1nngnet S t. 1

and has it? flat eitle 't'ri locz'uetl intermediate between said contact. points 5 and 20. En Oit'ltl to adjust the thermostatn: lever in proper pi, 'on i'ietn'een s iiihl Contact points, an arm Jo mounted on a shaft 2.1. and 195 connected by n (-onnecting i'Ok'l 29 with 21 lever arm which mounted on a. sl'izift- 81, said sluil't 131 projecting across the. heating cl'mmher l tttHl terminating at its outer eml in :1 plate ll mounteil on the. outside oi the ineuhntor and having :1, slotted arm 3:2 oorniollml bf. a thumb blllillli 33, whereby on uns rewing mid arm 3%; may he shitteii so no: to rotate the shaft 31, and, through its eonnectiom wit 1 the thermostatic arm 3 adjust the iti'l'tl' to the proper position between the cont-net points 25 and 2(8. The Contact; points 25 and 26 are each mounted. on a suitable insnhitting block 27 and are eonneoteil to himling post 26 11315197".

Located beneath the ehett l0 and :uljaeent to one oi the motors (t is an eleoti'onnne'net 2H mounted on an insulating hhw-l; iii; a ti mounted on :1 standard 217; on suitl ineul hloel; 34-" is an zniimtul'e lever 37 harm eounterweight 36 ll one entl nml :i ojeetion or pin 3? at its other eiul wl'iieh ulztpied to engage one 05 a pair o1 not-shes Eh in the periphery of a rotary disk 33) illO-Hllltitl on the shaft l the rotary dhk 3$ heing' limited in its rotzu. nn'en'ient. by means of a pin mount. 1.. i one of the stun thin l and projecting through a, Curved slot in the (lih. 39.

The motors 5 and the eleetro-mngoet S t and the theri'nostut are loeotuii in an electric circuit arranged as follows: A conducting wire extends from the plate 2'3 of the int to one oi the binding posts -13 of motor there being it hatter; %3 h.- et'ween the 'tl'iermo- Si "ting Wire cont 1 it conducting wire from the other hindine post 27 of the thermoetnt to the contact strip it? of the rotary to t 1?. V.\. brunch eoiuluetinf; Wire is he Wire 12 "to the elec- 1 ch eomlnetingg Wire 4;?

'1 leads from the eonth "ting wire to one of the hinthnc; posth- 4-8 of the motor From the other liiin lin 1708i 4-5 of the motor a conducting wire 50 leads, to the eontzurt strip 13 of the rotary :ontz'mt dish '14 hrnnoh conducting wire 51 ends from the wire to the eoutuet strip 13 oi the IUl'ill\ (liSlx 1 A branch minduelin i wire iezuli-s from the Ni M to one of the eontziet stripe 16 of the rotary contact, disk From the other contact strip 16", a hrzineh wire 5:: lHH'lS to ii, branch wire :i'ending 'i'i'oni of eonlurt it of the rotary 5'! iemling other elm: hruneh to the i I Quit.

tro-nmgnet and Wires to and post MS of the motor (L ii'ountetl on the shaft 10 is :i sprocket wh el 53? which is eomurrteil h v moons of :i sprocket chain 58 with a soroehet wheel 5t mounted on a shaft (30 ling through the title of the (-humhe the hunting ehznnhei- 1 mm mipporteil therein h) means oi hangers; Baht Fhn'it hi5: mounted til. thereon, an arm 2 which i? pivoted to the owl of n Z'tHl 1 hinged m' I: other enrl to the iliun iei' or (loor 4- o t the ineulmtor the (loor l heii'ig eoniroihnl in its movement if. manna of :1 (spring); 4'.

The operation oi the apparatus is: to! low When the temperature in the heating ehmnher 1 time to 11 certain point which i giwiter than the tem iernture desired, the thermostat opt-ro i in the heat to some the arm 22; to u'iove into ontnet with the eoutiu-t point .(i therehy (losing the eiroiiit from hatter i t. through wire ii'. throu jh ihernuwtuh through u'ii'e i5 :uui \(i'it 5 1, through rotnry su'ih-h 1 1 and through wire 5.) io the mot oimultnneouniy with the ion of the eul'i'eut as ju t tl\". !-tiilttl. current will lion ihrmigh wire .5 to eoniuet lti, JO tzn'y snitch ii. through Wire or (L St to electromngnet Z23 :uul hook to hatter through wire "to itlti Wire 15.1 Tiib hitter eurrent ,tll$.(.

l the el uro-magnet U to :ittrnet the ltlliglijtl lever an: nature, 37: mini th 'ehv relezwe the l (lish 39, this notion n'iultzn'ieoi with the starting; of the n'iotor. hiring the operation of the motor, the shalt. 10 will rotate until the projection 33' engages the opposite notch 35 in the disk 39. The electromegnet 33 hecoznes (len'uignetized :is soon as the projeetion 17 on. the rot ry SWilt'ii 17 leaves eouiuet h; Whieh ")Yllithb the circuit,

as: the notch 33 oil-The tlir l: '39 arrive opposite the pro eetion 37 on the nrnuitnre 35. the weight Z36 enusm the projection 237 on the lever to he h with the notch 38.

The projection 10 in the movement of the {ii tion amt the rotation of the shaft it) V ilfill the (lisk 39 is in the position in Flf" the 111g); 1'?" on the (list: 7 in the nt tion shown in Fir 3'. 'then the thermostat; cools, the thel'm tat; ooi'itnet erin 23 will move away from Contact 36 and eontnet with contact, thus closing the cir- The current will then flow from the lmttery 4 L through wire 4-), through the thermostat; into the contact amt through wire. 44 to contact '13, and rotor} Swifhft l and through wire to motor 5, and heel; through wire 47, and Wire to battery 5L3. The eurren't will also branch oiii' from Wire 44' through wire 52, contacts 16 and rotary s 'ilel\ 18 through Wires and R4 to eleelii to betjed into engagement the slot ti limits x 39 in either three-- automatically regulated in a very eiiicient manner,

ceases tery 43. As the armature lever 35 drops, the motor 5 rotates the shaft 10 half a revolution nntilthe disk 39 is stopped by the pin 40,-;andthe pin 37 on the armature 35 enga esthenotch 38.-

y-"incans of the electric circuit and the apparatus hereinbefore described, it will readily be seen that the temperature of the heating chamber of an incubator will be trolled means in said circuit for releasing:

said driving shaft and permitting it. to partially rotate in one direction or another and electrical means for cutting out one of said motors from the circuit.

2. In an apparatus ofthe character described, an incubator, a damper closing the heating chamber thereof, mechanism for opening and closing said damper, electrical means or operating said mechanism including a series of rotary contact disks and vibratablc contacts adapted to engage therewith, a pair of alternately operating electric tors geared to'said drivin motors located in the same circuit-with said contact disks and alternately out out of'said circuit by said disks, a thermostat mounted in the heating chamber of the incubator, and means electrically controlled by said thermostat for operating said electrical mechanism.

3. In an apparatus of the character de scribed, an incubator, a damper closing the heating chamber thereof, mechanism for opening and closing said damper and having a rotary driving shaft, a series of rotary contact disks mounted on said shaft, and flexible contact arms adapted to engage therewith, a portion of said arms being normally out of contact with said disks, electric momostat located in the heating chamber of the incubator, an electro-magnet, a balanced armature-lever controlled by said electromagnet, said electric motors, thermostat and electro-magnet being electrically connected, a rotary disk on said driving shaft, means for limiting the rotary movement of said disk in said driving shaft, said disk being adapted to be detachably engaged with said armaturelever whereby said electro-magnet is controlled by said thermostat-and the one or the other of said motors is permitted to operate to open or close said damper.

In testimony whereof I hereunto afiix my j signature in presence of two Witnesses.

LOUIS L. WHITE.

Witnesses:

' IRVING L. MCOATHRAN, FORREST F. VnooMA'N.

shaft, a ther- 

